<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="app">
      <h1>{{ msg }}</h1>
    </div>

    <script src="./js/vue.js"></script>
    <script>
      const app = new Vue({
        // el: "#app",
        data: {
          msg: "hello",
        },
        beforeCreate() {
          console.log("beforeCreate");
        },

        created() {
          console.log("created");
        },

        beforeMount() {
          console.log("beforeMount");
        },

        mounted() {
          console.log("mounted");
        },
      });

      app.$mount("#app");
    </script>
  </body>
</html>
